SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for kray.today

Valid
Issued by (CA)
Let's Encrypt
Subject
kray.today
Valid from
Jun 28, 2026
Valid until
Sep 26, 2026 (42 days remaining)
Public key
EC 384-bit
Serial
051EB667D76C48ABD541D0F7D9C23FE86E81
SHA-256 fingerprint
C0:B3:3D:44:A7:9E:9C:92:57:D1:3A:E3:53:91:3A:93:04:89:B8:AD:E1:A3:68:51:7E:3C:B6:91:4B:0A:86:36
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
kray.today, www.kray.today

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org, sectigo.com).

This certificate has been served since Aug 5, 2026.

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This is today's certificate. Turn on monitoring and we'll watch kray.today continuously, notifying you the moment anything moves across all three signals:

Uptime

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DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

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